*{
    padding:0;
    margin: 0;
}
a{
    text-decoration: none;
}
.header-wrap{
    background-color: #333;
}
.header{
    width: 1200px;
    height: 80px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center; 
}
.logo{
    height: 50px;
}
.nav a{
    color: #ddd;
    margin-left: 30px;
}
.nav a:hover{
    color: white;
}